Question

If the perimeter of each face of a cube is 32 cm, find its lateral surface area. Note that four faces which meet the base of a cube are called its lateral faces.

Answer 1

$\text{Perimeter of each face of a cube}=32cm$

$\therefore \text{Length of edge}=\frac{32}{4}=8cm$

$\text{and lateral surface area of the cube}$

$=4\times (side{)}^2=4\times 8\times 8=256c{m}^2$